The long term goal of this research is to develop a method for probing the ocean and ocean sediment at larger depth for imaging submerged objects at high resolution. We aim to use nonlinear scattering of sound in the presence of inhomogeneities to obtain high resolution images at high penetration depth. Through the developed theory, we can tackle the problem of high attenuation of acoustic fiel...

The Beam-Position Monitors (BPM) for the PEP-11 B Factory consist of four 1.5cm diameter button style pickups mounted on the diagonals of the quadrupole vacuum chambers. Before installation of the vacuum chambers in the quadrupole assemblies, the electrical center of the BPMs is measured with respect to the mechanical center in a calibration test stand. In this paper the calibrations test stand...

(1 + 1) [RF10]. (k) [YC99]. (λA+ λB + C)x = b [SP02]. (m) [WOW00]. (Re ≤ 9500) [GHTW00]. 1 [LW03, RMB00, VB07]. 2 [ABST13, ACD08b, BH97, BI09, CMV97, CD01, KW07, KP06a, Kra09, Lam97, LRP07, LYL11, LW03, MT97a, NN03, Sma01, vVKA11]. 2, 3, 4 [Goe97]. 3 [BIA99, BIA05, CDB13, CMSS06, CH11, Don06, GH13, GD03, HA01, Kra09, LS12b, Min02, PS10b, PWGW12, PELY13, PRSS11, RY03, RH06, Sch05, ZCW10]. 5 [Goe...

In translation, choosing appropriate equivalent is essential to convey the right message from source-text to target-text, and one of the issues that may have a determinative role in appropriate equivalent choice is the semantic prosody (SP) behavior of words and the relation existing between the SP of a word and semantic senses (i.e. negativity, positivity or neutrality) of its collocations in ...

During a parasitological investigation on the fresh water fishes of North West of Iran (West Azerbaijan Province), 266 specimens of 11 fishes were examined. Fishes were collected from seven stations from Aras, Zangbar and Sarysou Rivers between summer 2001 to summer 2002. Nine protozoan species were detected; eight Cilliophora and one Rhizopoda. Cilliophora are: Chilodonella sp., Apiosoma sp.,V...

According to previous studies, the genus Rheum in Iran includes four species: R. turkestanicum Janisch., R. persicum Losinsk., R. ribes L. and R. khorasanicum Baradaran & Jafari. During the long-term study, based on field and many herbaria specimens, three new species including R. iranshahrii Taheri & Assadi sp. nov., R. kordestanicum Taheri & Assadi sp. nov. and R. austro-iranicum Taheri & Ass...